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Finding the Fourth Proportional to 12,288.53, 16,958.18 and 6,699.53

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Solution

The fourth proportional to 12,288.53, 16,958.18 and 6,699.53 is: 9,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.53 : 16,958.18 = 6,699.53 : x
  2. Step 2: Convert to fraction form
    12,288.53/16,958.18 = 6,699.53/x
  3. Step 3: Cross multiply
    12,288.53x = 16,958.18 × 6,699.53
  4. Step 4: Simplify right side
    12,288.53x = 113,611,835.66
  5. Step 5: Solve for x
    x = 113,611,835.66/12,288.53
  6. Step 6: Final answer
    x = 9,245.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.